# 1. 添加cmake版本说明
cmake_minimum_required(VERSION 3.1.3)
# 2. 声明工程名称
project(file_server)

set(target file_server)

# 3. 监测生成proto映射文件代码
set(proto_path ${CMAKE_CURRENT_SOURCE_DIR}/../proto)
set(proto_files file.proto base.proto)
foreach(proto_file ${proto_files})
    string(REPLACE ".proto" ".pb.cc" proto_cc ${proto_file})
    string(REPLACE ".proto" ".pb.h" proto_h ${proto_file})

    if (NOT EXISTS ${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/${proto_cc})
        message(${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/${proto_cc})
        message(${proto_h})
        add_custom_command(
            PRE_BUILD
            COMMAND protoc
            ARGS --cpp_out=${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/ -I${proto_path} --experimental_allow_proto3_optional ${proto_path}/${proto_file}
            DEPENDS ${proto_path}/${proto_file}
            OUTPUT ${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/${proto_cc}
            COMMENT "生成Protobuf框架代码文件:" ${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/${proto_cc}
        )
    endif()
    # 记录生成所需的文件
    list(APPEND proto_srcs ${CMAKE_CURRENT_SOURCE_DIR}/../proto_create/${proto_cc})
endforeach()

# 4. 获取源码目录下所有文件
set(src_files "")
aux_source_directory(${CMAKE_CURRENT_SOURCE_DIR}/source src_files)

# 5. 声明目标以及依赖 --- 要将proto_srcs中的文件声明出来, 外部命令才会执行
add_executable(${target} ${src_files} ${proto_srcs})

# 6. 设置需要连接的库
target_link_libraries(${target} -lgflags -lspdlog -lfmt -lbrpc -lssl -lcrypto -lprotobuf -lleveldb -letcd-cpp-api -lcpprest -lcurl /usr/lib/x86_64-linux-gnu/libjsoncpp.so.19)

# 7. 设置头文件默认搜索路径
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../common)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../odb_create)
include_directories(${CMAKE_CURRENT_SOURCE_DIR}/../proto_create)

#8. 设置安装路径
INSTALL(TARGETS ${target} RUNTIME DESTINATION bin)